Practice MCQ Questions and Answer on Missing Number Finding

1.

Find the missing number?

• (A) 18
• (B) 15
• (C) 13
• (D) 11

Show Answer

 Starting with the top circles, multiply each value by 2 and subtract 3, writing the result in the corresponding segment of the lower circle. So, 8 *2 = 16 - 3 = 13. Missing Number = 13.

2.

Find the missing number?

• (A) 3
• (B) 4
• (C) 7
• (D) 2

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 Reading each line of the diagram as a 3 digit number, add the top and middle lines together to give the result on the bottom line. Thus, 237 + 645 = 882. Missing Element = 2.

3.

Find the missing number?

• (A) 7
• (B) 2
• (C) 13
• (D) 5

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 Starting with the 10 at the top, one set of numbers increases by 3 each time, written in alternate boxes as you move down the diagram, and the other set of numbers decreases by 2, written in the boxes remaining. So, Required Number = 4 - 2 = 2

4.

Find the missing number?

• (A) 9
• (B) 6
• (C) 3
• (D) 13

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 Start with the numbers along the top right diagonal of the diagram, and add pairs of adjacent numbers together, putting the result in the square to the lower left of the original pair of numbers. Continue in this way towards the lower left hand corner. I.e 4 + 2 = 6 2 + 1 = 3 6 + 3 = 9 So, 1 + x = 7 x = 6

5.

Find the missing character.

• (A) 1
• (B) 731
• (C) 1625
• (D) 2031

Show Answer

 Logic: (3*5)+1 = 16 (16*5)+1 = 81 (81*5)+1 = 406 So, (406*5)+1 = 2031  

6.

Find the missing character?

• (A) 88
• (B) 96
• (C) 238
• (D) 500

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 First row → (263 -188) *4 = 300. Thus, Second Row → (915 -893) *4 = 22 *4 = 88.

7.

Find the missing number?

• (A) 17
• (B) 2
• (C) 9
• (D) 5

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 Add together numbers in corresponding segments of the outer four squares. The answer is placed in the diagonally opposite segment of the middle square.

8.

Find the missing number?

• (A) 27
• (B) 31
• (C) 26
• (D) 29

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 Moving Left to Right: 8 + 4 = 12 12 + 3 = 15 15 + 2 = 17 Now repeat, 17 + 4 = 21 21 + 3 = 24 24 + 2 = 26. Again, 26 + 4 = 30 Missing Number = 30. 30 + 3 = 33 33 + 2 = 25

9.

Find the missing number?

• (A) 1
• (B) 3
• (C) 7
• (D) 13

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 In each segment of the circle, multiply the outer 2 numbers together and subtract the sum of the outer 2 numbers in the opposite segment to give the value in the inner grey segment.

10.

Find the missing number?

• (A) 4
• (B) 1
• (C) 9
• (D) 13

Show Answer

 Logic: Add up numbers in corresponding segments of each square. The sum of the digits in the left hand segments = 20, The sum of the upper segments = 22, The right hand segments = 24 The lower segments = 26. Thus, 13 + 2 + 7 + x = 26. x = 26 - 22 = 4. Missing Element = 4.